axon

Axon - Cannot emit query update in different microservice

由 我只是一个虾纸丫 提交于 2021-02-11 07:14:07
问题 I'm bothering with situation when I want to emit query update via queryUpdateEmitter but in different module (microservice). I have application built upon microservices and both are connected to the same Axon Server. First service creates subscriptionQuery, and sends some commands. After a while (through few commands and events) second service handles some event, and emits update for firstly subscribed query. Unfortunately it seems like this emit doesn't get to subscriber. Queries are exactly

Axon - Cannot emit query update in different microservice

由 不羁的心 提交于 2021-02-11 07:13:24
问题 I'm bothering with situation when I want to emit query update via queryUpdateEmitter but in different module (microservice). I have application built upon microservices and both are connected to the same Axon Server. First service creates subscriptionQuery, and sends some commands. After a while (through few commands and events) second service handles some event, and emits update for firstly subscribed query. Unfortunately it seems like this emit doesn't get to subscriber. Queries are exactly

Automatically scale Axon's tracking event processors

由 大城市里の小女人 提交于 2021-02-07 09:13:52
问题 I am using Axon framework 4.0.3 with Spring Boot to have event sourcing, and have one tracking processor which is configured to have multiple segments/threads to process events concurrently: axon.eventhandling.processors[my_processor].initial-segment-count = 6 axon.eventhandling.processors[my_processor].thread-count = 3 It is meant to have 2 nodes of my_processor using 3 threads each. However, the problem with this solution is that it's not scalable. I have to know from the very beginning how

Automatically scale Axon's tracking event processors

由 余生长醉 提交于 2021-02-07 09:13:07
问题 I am using Axon framework 4.0.3 with Spring Boot to have event sourcing, and have one tracking processor which is configured to have multiple segments/threads to process events concurrently: axon.eventhandling.processors[my_processor].initial-segment-count = 6 axon.eventhandling.processors[my_processor].thread-count = 3 It is meant to have 2 nodes of my_processor using 3 threads each. However, the problem with this solution is that it's not scalable. I have to know from the very beginning how

Axon Replay TrackingEvent related to some “aggregateIdentifier” using Axon 4

由 眉间皱痕 提交于 2021-02-07 04:32:49
问题 We are using CQRS and Event Sourcing using Axon 4. We have the following scenario. Domain Book Action- Create new Book into DB using the Axon CRQS and event sourcing flow (Command - Aggregate - Event) Action- Update the already created Book into DB using the Axon CRQS and event sourcing flow (Command - Aggregate - Event) In the Axon event store this two commands explained above (createCommand and updateCommand) have the same "aggregateIdentifier" id, they are in the same Aggregate tree,

Web3极客日报 #11

由 放肆的年华 提交于 2021-01-30 15:40:01
另一个高性能区块链开发框架 —— Muta https://github.com/nervosnetwork/muta-docs/blob/master/docs/zh/overview.md @Shooter： Muta 是一个由 Rust 编写的具备可扩展性的高性能区块链框架。它允许你使用 Rust 或 Typescript 编写你的业务逻辑，构建你的专有区块链。 同时，Muta 还是 Nervos layer2 解决方案 Axon 的底层基础设施，Muta 将内置一套跨链方案联通整个 Nervos 网络。 2.为什么选择Rust？ https://mp.weixin.qq.com/s/7WiVf5B50t3vfhz504sdXg @Harry : 作者Dmitriy从内存安全，性能，测试的难易分析了Rust的优点，另外从Parity自身的角度阐述了为什么选择Rust。 3.推荐区块链学习平台——Cryptozombies https://cryptozombies.io/ @River Learn to Code Blockchain DApps By Building Simple Games CryptoZombies是一个互动学习平台，教你所有关于区块链的技术。通过完成游戏，学习智能合约。 本文由博客一文多发平台 OpenWrite 发布！

Axon Event Published Multiple Times Over EventBus

由 别等时光非礼了梦想. 提交于 2021-01-29 21:51:01
问题 Just want to confirm the intended behavior of Axon, versus what I’m seeing in my application. We have a customized Kafka publisher integrated with the Axon framework, as well as, a custom Cassandra-backed event store. The issue I’m seeing is as follows: (1) I publish a command (e.g. CreateServiceCommand) which hits the constructor of the ServiceAggregate, and then (2) A ServiceCreatedEvent is applied to the aggregate. (3) We see the domain event persisted in the backend and published over the

Implementing axon snapshot with springboot 2.3.3 and axon 4.4.2

由 ╄→尐↘猪︶ㄣ 提交于 2021-01-29 07:25:18
问题 can anyone suggest any tutorial/sample project for Implementing Snapshot in AXON 4.4.2 with springBoot 2.3.3. i went through the documentation(https://docs.axoniq.io/reference-guide/axon-framework/tuning/event-snapshots#snapshotting) and did below: The AxonConfig.class @Configuration public class AxonConfig { @Bean public SnapshotTriggerDefinition app1SnapshotTrigger(Snapshotter snapshotter) { return new EventCountSnapshotTriggerDefinition(snapshotter, 10); } } The Aggregate @Aggregate

Axon Framework: Delete Aggregate Root

由 痞子三分冷 提交于 2021-01-28 11:08:45
问题 I honestly have no idea where to begin. The repository aspect is relatively simple but I cannot seem to find any information on how to delete an aggregate root via the CommandGateway. Any directions and/or documentation on how to achieve this would be greatly appreciated. 回答1: Putting this here for future reference for anyone else that might be as lost as I was initially. When using the Event Sourcing Aggregate, one can make use of the markDeleted() static method on the Aggregate in question.

Axon Framework: Delete Aggregate Root

由 萝らか妹 提交于 2021-01-28 11:03:38
问题 I honestly have no idea where to begin. The repository aspect is relatively simple but I cannot seem to find any information on how to delete an aggregate root via the CommandGateway. Any directions and/or documentation on how to achieve this would be greatly appreciated. 回答1: Putting this here for future reference for anyone else that might be as lost as I was initially. When using the Event Sourcing Aggregate, one can make use of the markDeleted() static method on the Aggregate in question.
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